SpinShare
Radial file converter for Windows — drag, tap Shift, drop on a format. Local only, nothing uploaded.
What is SpinShare?
SpinShare is a file converter for Windows that runs entirely on your PC. It converts images, video, audio, PDFs, documents, spreadsheets, CAD files, archives and subtitles.
You drag a file, tap Shift to open a format wheel under your cursor, and release on a segment — the converted file lands next to the original. Tap Ctrl for tools (crop, compress, trim, split, merge, redact, metadata) or Alt for file actions (copy, move, terminal).
Everyday jobs: turn an iPhone HEIC photo into JPG, a downloaded WebP into PNG, a phone MOV into MP4, or a CSV export into XLSX. Every conversion runs locally — nothing is uploaded, the original file is never touched, and it works offline.
Free trial: 5 conversions per device, then a one-time lifetime license (from $1.99 for early founders, up to 3 PCs). No subscription.
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FounderPlaybooks.
What other founders did to grow.
2722 dispatches from hundreds of founders, pulled from the week's best podcasts.
I don't want it to say yes to something that is a no but it's fine for me to for it to say no to something that that might be a yes I don't care about the the false negatives that those are acceptable because I have like 20,000 podcast episodes coming in in a day
Pick the asymmetric error tolerance before tuning the prompt
When the input firehose is big, optimize the prompt for precision, not recall. A wrong 'yes' burns user trust on every notification; a missed 'yes' is invisible. Encode that asymmetry directly into the eval scoring before tuning — penalize false positives ~10x more than false negatives, then chase that number. Arvid hit 99.8% on a podcast-classifier doing exactly this.
some apps are even offering like a pause option um so not only are higher prices kind of becoming the norm like if we want that to work we need to give them that feeling of control
Pause option at cancellation reduces churn without discounting
Offering a pause option at the moment a user intends to cancel gives them a lower-commitment exit that preserves the subscriber relationship for future reactivation. Users retain a sense of control without fully churning — and the app avoids losing the billing relationship entirely. This is especially effective for seasonal or lifestyle apps where usage naturally ebbs and flows.
There's a play for whatever you're stuck on.
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